<template>
	<div class="list" ref="wrapper">
	<div>
		<div class="area">
			<div class="title border-topbottom">当前城市</div>
			<div class="button-list">
				<div class="button-warpper">
					<div class="button">{{this.currentCity}}</div>
				</div>
			</div>
		</div>
		<div class="area">
			<div class="title border-topbottom">热门城市</div>
			<div class="button-list">
				<div class="button-warpper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
					<div class="button">{{item.name}}</div>
				</div>
			</div>
		</div>
		<div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
			<div class="title border-topbottom">{{key}}</div>
			<div class="item-list">
				<ul>
					<li class="border-bottom" v-for="innerItem of item" :key="innerItem.id"  @click="handleCityClick(innerItem.name)">{{innerItem.name}}</li>
				</ul>
			</div>
		</div>
	</div>
	</div>
	
</template>
<script>
import BScroll from 'better-scroll'
import { mapState, mapMutations } from 'vuex'
export default{
	name:'CityList',
	props:{
		cities:Object,
		hot:Array,
		letter:String
	},
	computed: {
		...mapState({
			currentCity: 'city'
		})
		
	},
	methods: {
		handleCityClick(city) {
			// this.$store.commit('changeCity',city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity'])
		
	},
	mounted () {
		this.scroll = new BScroll(this.$refs.wrapper)
	},
	watch: {
		letter () {
			if (this.letter) {
				const element = this.$refs[this.letter][0]
				this.scroll.scrollToElement(element)
			}
		}
	}
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
	.border-topbottom,.border-bottom
		&:before,&:after
			border-color:#ccc
	.list
		position:absolute
		top:1.58rem
		left:0
		bottom:0
		right:0
		overflow:hidden
		.title
			line-height:.54rem
			background:#eee
			padding-left:.2rem
			font-size:.26rem
		.button-list
			padding:.1rem .6rem .1rem .1rem
			overflow:hidden
			.button-warpper
				width:33.33%
				float:left
				.button
					margin:.1rem
					text-align:center
					border:.02rem solid #ccc
					padding:.1rem 0
					border-radius:.06rem
		.item-list
			li
				line-height:.76rem
				padding-left:.2rem
</style>